/* -*- c++ -*- */

/*

 * Copyright 2007 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3, or (at your option)

 * any later version.

 * 

 * GNU Radio is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <mb_time.h>

#include <omnithread.h>

#include <math.h>

#include <assert.h>

mb_time::mb_time(double real_secs)

{

  double floor_secs = floor(real_secs);

  d_secs = (long) floor_secs;

  d_nsecs = (long) ((real_secs - floor_secs) * 1e9);          // always positive

}

mb_time

mb_time::time(const mb_time &delta_t)

{

  unsigned long        abs_sec, abs_nsec;

  unsigned long rel_sec  = delta_t.d_secs;

  unsigned long rel_nsec = delta_t.d_nsecs;

  omni_thread::get_time(&abs_sec, &abs_nsec, rel_sec, rel_nsec);

  return mb_time(abs_sec, abs_nsec);

}

mb_time

operator+(const mb_time &x, const mb_time &y)

{

  mb_time r(x.d_secs + y.d_secs, x.d_nsecs + y.d_nsecs);

  while (r.d_nsecs >= 1000000000){

    r.d_nsecs -= 1000000000;

    r.d_secs++;

  }

  return r;

}

mb_time

operator-(const mb_time &x, const mb_time &y)

{

  // assert(!(x < y));

  mb_time r(x.d_secs - y.d_secs, x.d_nsecs - y.d_nsecs);

  while (r.d_nsecs < 0){

    r.d_nsecs += 1000000000;

    r.d_secs--;

  }

  return r;

}

mb_time

operator+(const mb_time &x, double y)

{

  return x + mb_time(y);

}

mb_time

operator-(const mb_time &x, double y)

{

  return x - mb_time(y);

}